SERVICE BULLETIN. Citation CIB TITLE FUEL - FIREWALL SHUTOFF VALVE GROUND IMPROVEMENT

Transcription

1 TITLE FUEL - FIREWALL SHUTOFF VALVE GROUND IMPROVEMENT EFFECTIVITY MODEL SERIAL NUMBERS 525 (CJ1+) -0680, thru A (CJ2+) -0417, thru B (CJ3) -0263, thru REASON There is a ground wire missing for the right firewall shutoff valve relay. DESCRIPTION This service bulletin provides parts and instructions to add a ground wire to the right firewall shutoff valve relay. COMPLIANCE RECOMMENDED. This service bulletin should be accomplished at a scheduled maintenance period or inspection. A service bulletin published by Cessna Aircraft Company may be recorded as "completed" in an aircraft log only when the following requirements are satisfied: 1) The mechanic must complete all of the instructions in the service bulletin, including the intent therein. 2) The mechanic must correctly use and install all applicable parts supplied with the service bulletin kit. Only with written authorization from Cessna Aircraft Company can substitute parts or rebuilt parts be used to replace new parts. 3) The mechanic or airplane owner must use the technical data in the service bulletin only as approved and published. 4) The mechanic or airplane owner must apply the information in the service bulletin only to aircraft serial numbers identified in the "Effectivity" section of the bulletin. 5) The mechanic or airplane owner must use maintenance practices that are identified as acceptable standard practices in the aviation industry and governmental regulations. No individual or corporate organization other than Cessna Aircraft Company is authorized to make or apply any changes to a Cessna-issued service bulletin, service letter, or flight manual supplement without prior written consent from Cessna Aircraft Company. Cessna Aircraft Company is not responsible for the quality of maintenance performed to comply with this document, unless the maintenance is accomplished at a Cessna-owned Service Center. APPROVAL Cessna received FAA approval for the technical data in this publication that changes the airplane type design. FLIGHT CREW OPERATIONS No Changes May 29, 2014 Page 1 of 6 Cessna Aircraft Company, Cessna Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991 COPYRIGHT 2014

2 WEIGHT AND BALANCE INFORMATION Negligible REFERENCES Cessna Model 525 Maintenance Manual Cessna Model 525A Maintenance Manual Cessna Model 525B Maintenance Manual Cessna Model 525 Wiring Diagram Manual Cessna Model 525A Wiring Diagram Manual Cessna Model 525B Wiring Diagram Manual PUBLICATIONS AFFECTED Cessna Model 525 Wiring Diagram Manual Cessna Model 525A Wiring Diagram Manual Cessna Model 525B Wiring Diagram Manual ACCOMPLISHMENT INSTRUCTIONS 1. Prepare the airplane for maintenance. A. Make sure that the airplane is electrically grounded. B. Make sure that all switches are in the OFF/NORM position. C. Disconnect electrical power from the airplane. (1) Disconnect the airplane battery. (2) Disconnect external electrical power. D. Attach maintenance warning tags to the battery and external power receptacle that have "DO NOT CONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" writtenonthem. 2. Get access to the aft power J-Box. A. (Model 525 airplanes) Open aft baggage compartment panels 321A and 322A and remove the cover from the aft side of the J-Box. (Refer to the Model 525 Maintenance Manual, Chapter 6, Access Plates and Panels Identification - Description and Operation.) B. (Model 525A and 525B airplanes) Open aft baggage compartment panel 321CC. (Refer to the applicable Maintenance Manual, Chapter 6, Access Plates and Panels Identification - Description and Operation.) 3. (Refer to Figure 1, Detail A.) Get access to the firewall shutoff valve relay wiring. A. Remove the cover from the forward side of the aft power J-Box. (Refer to the applicable Maintenance Manual, Chapter 24, DC Electrical Load Distribution - Maintenance Practices.) B. (Refer to Figure 2.) Disconnect electrical connector PZ (Refer to Figure 2.) Modify the wiring. A. Install the electrical wire from BBPT041 to BBPZ102 using one Connector and one S Contact and MS Tie Straps as necessary. (Refer to the applicable wiring diagram manual, Chapter 20, Wiring - Maintenance Practices.) NOTE: Cut the BBPT041-BBPZ102 Electrical Wire as necessary to fit the model of airplane being modified. 5. (Refer to Figure 2.) Connect electrical connector PZ102. Page 2 May 29, 2014

3 6. Do an functional test of the firewall shutoff valve. (Refer to the applicable Maintenance Manual, Chapter 28, Fuel Distribution - Adjustment/Test.) 7. Install the cover on the forward side of the aft power J-Box. (Refer to the applicable Maintenance Manual, Chapter 24, DC Electrical Load Distribution - Maintenance Practices.) 8. Install the removed access panels. A. (Model 525 airplanes) Install the cover on the aft side of the J-Box and close aft baggage compartment panels 321A and 322A. (Refer to the Model 525 Maintenance Manual, Chapter 6, Access Plates and Panels Identification - Description and Operation.) B. (Model 525A and 525B airplanes) Close aft baggage compartment panel 321CC. (Refer to the applicable Maintenance Manual, Chapter 6, Access Plates and Panels Identification - Description and Operation.) 9. Record that this service bulletin has been completed. A. Complete a Maintenance Transaction Report. B. Put a copy of the completed Maintenance Transaction Report in the airplane logbook. C. Send a copy of the completed Maintenance Transaction Report to: CESCOM C/O Camp Systems International Incorporated, 8201 East 34th Street North, Building 1100 Suite 1101 Wichita, KS May 29, 2014 Page 3

4 Figure 1. Firewall Shutoff Valve Relay Removal/Installation (Sheet 1) Page 4 May 29, 2014

5 Figure 2. Fuel Firewall Shutoff Valve Relay Ground Wire Installation (Sheet 1) May 29, 2014 Page 5

6 MATERIAL INFORMATION Order the kit below to install this modification. NEW P/N QUAN- TITY 1 Kit, consisting of the following parts: M81044/ inches Electrical Wire (Marked BBPT041-BBPZ102) KEY WORD OLD P/N INSTRUCTIONS/ DISPOSITION None S Contact None MS Tie Strap None Connector None 1 Instructions Page 6 May 29, 2014

7 OWNER ADVISORY TITLE FUEL - FIREWALL SHUTOFF VALVE GROUND IMPROVEMENT TO: Cessna Aircraft Owner REASON There is a ground wire missing for the right firewall shutoff valve relay. COMPLIANCE RECOMMENDED. This service bulletin should be accomplished at a scheduled maintenance period or inspection. LABOR HOURS WORK PHASE MAN-HOURS Modification 2.0 MATERIAL AVAILABILITY PART NUMBER AVAILABILITY COST * * WARRANTY This bulletin is recommended. Eligible airplanes may qualify for parts and labor coverage, as described below. May 29, 2014 Page 1 of 2 Cessna Aircraft Company, Cessna Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991 COPYRIGHT 2014

8 OWNER ADVISORY Eligibility: Parts Coverage: Labor Coverage: Credit Application: s identified within the serial number effectivity of this service bulletin which are within the five-year/5,000 hour warranty period on the original issue date of this bulletin. Cessna-owned and Cessna-authorized Service Facilities, operators, or other maintenance facilities may submit a Credit Claim Form for the parts required to accomplish this bulletin. Cessna-owned and Cessna-authorized Service Facilities may submit a Credit Claim Form for the labor necessary to accomplish this service bulletin. Please note Manpower Requirements for coverage guidelines. All work must be completed and the Credit Claim Form submitted before the date shown below. Send the Credit Claim, along with any required parts (see Material Information), to the point of purchase. Parts to be returned to Cessna Service Parts & Programs should be forwarded to: Warranty Administration 7121 Southwest Boulevard Wichita, KS USA Expiration: June 30, 2016 NOTE: As a convenience, service documents are now available online to all our customers through a simple, free-of-charge registration process. If you would like to sign up, please visit the "Customer Access" link at to register. Page 2 May 29, 2014